1 of 15 05/09/2008 14:56 GLASSTIPS: TRANSPARENTS What to expect f rom selected Bullseye sheet glass. revised November 5, 2007 This handy reference guide explains what you can expect from your 2007 Bullseye sheet glass colors before and after heatwork in the kiln. Click on the small style swatches to the left to get info on individual colors. Check back to explore additional styles as they are added. OPA LESCENTS TRA NSPA RENTS TRANSPARENT NOTES For each style, the top row shows the double-rolled, unfired cold glass color. For stained glass, refer to the top row. The same glass after firing to a full fuse is shown directly below the cold glass. For kilnformed glass, refer to the bottom row. Swatches shown are about two inches wide. GlassTips describe ONLY the results of standard full fuse + slumping firings, i.e.: glass 6mm thick, 10" (25cm) square, fired to 1480 F (804 C), held for 10 minutes, then fired a second time to 1250 F (677 C) for 30 minutes. To best ensure success, test glasses before use under your specific firing conditions. Use GlassTips information as a starting point only. Glass reactivity: Not all reactions are visible. Some are too weak to be seen and others are masked by dark color. "Striking glasses" change dramatically to reach target color during firing. Colors may vary, depending on firing schedule, rate, atmosphere, and heatwork. For color-sensitive projects, test before use. Key to icons Copper Lead Selenium Silver Sulfur Striker LIGHT ORANGE STRIKER 001025 Striker. May vary from transparent clear to pale yellow. Fires to a stable, consistent color. With excessive heatwork, can opalize to a foggy orange. CLEAR 001101 Very faint green tint when viewed on edge. DEEP PLUM 001105
2 of 15 05/09/2008 14:56 LIGHT GREEN 001107 AQUAMARINE BLUE 001108 Ranges from bluer-green to greener-blue. DARK ROSE BROWN 001109 AVENTURINE GREEN 001112 A supersaturated chrome glass with metal flake glints in reflected light. DEEP ROYAL BLUE 001114
3 of 15 05/09/2008 14:56 TURQUOISE BLUE 001116 Fairly consistent color from run to run in cold sheet. A copper glass. May have black interface reaction with certain cadmium and/or sulfur glasses (001137, 001437, 000137, 000120, 000125, 001125, etc.). MIDNIGHT BLUE 001118 SIENNA 001119 With excessive heatwork, can opalize to a dark green/brown. YELLOW 001120 A cadmium glass. May fire slightly deeper than the cold sheet. May react with copper glasses. See notes on 001116. See notes on multiple firings. RED 001122
4 of 15 05/09/2008 14:56 Variations from orange-red to dark red. "Catspaw" windows of lighter coloration typical of single-rolled sheets. A cadmium/selenium glass. Generally fires deeper (more red) than cold sheet. "Catspaw" effect disappears on firing. See general notes on striking glasses and multiple firings. ORANGE 001125 Some variation from more yellow-orange to red-orange. A cadmium/selenium glass. Generally fires deeper (more red) than cold sheet. See general notes on striking glasses and multiple firings. CHARTREUSE 001126 Color may appear varied in density. More consistent color density. No shift in hue. With excessive heatwork, color opalizes and turns a dense green/brown. DEEP ROYAL PURPLE 001128 Very dark glass. Little light transmission in 3 mm thickness. CHARCOAL GRAY 001129 Very dark glass. May have very slight pink/purple coloration of gray. MEDIUM AMBER 001137
5 of 15 05/09/2008 14:56 Varies slightly from lighter to darker shade. A sulfur glass. May have dark interface reaction with copper-bearing (001116, 001408, 001417, 000116, 000144, 000145, 000147) and lead-bearing (001311, 001411, 000301, 000305) glasses. OLIVE GREEN 001141 No color shift. Slight opalizing with excessive heatwork. KELLY GREEN 001145 Color may become cloudy with excessive heatwork. LIGHT CORAL STRIKER 001205 Striker. Transparent clear. On edge, resembles 001101. Fires to a stable, consistent color. FERN GREEN 001207 Lighter than 001107. Consistent, solid color. LIGHT PINK STRIKER 001215
6 of 15 05/09/2008 14:56 Varies from lighter to darker; sometimes with lighter dappling in single-rolled sheets. Generally lighter and slightly more blue/pink than 001311. Color usually deepens on firing. Possible dark interface reaction with selenium and/or sulfur glasses (001122, 001125, 000124, 000125, 001137, 001437, 000137). Less viscous (softer) than most other glasses. VIOLET STRIKER 001234 A deep royal blue color. Fires to a consistent, transparent violet. Becomes slightly cloudy with excessive heatwork. PINE GREEN 001241 May include brown areas. At full-fuse temperatures, the brown areas appear as transparent wisps. Such wisping is more noticeable in a thin (-50) sheet and would be amplified by fusing an opalescent glass style under it. Unless a pure pine green is desired, these uniform wisps could be used as a design feature. SUNSET CORAL 001305 Color is transparent and varies in density. Fires to a consistent, more highly saturated color. May turn lighter and more transparent with excessive heatwork. CRANBERRY PINK 001311 Varies slightly from lighter to darker shade; sometimes with lighter dappling in single-rolled sheets.
7 of 15 05/09/2008 14:56 Color will almost always deepen on firing. Possible dark interface reaction with selenium and/or sulfur glasses (001122, 001125, 000124, 000125, 001137, 001437, 000137). Less viscous (softer) than most other glasses. MARIGOLD YELLOW 001320 Heavy, consistent opalizing with excessive heatwork. CARNELIAN 001321 Stable and consistent color. May Opalize to a heavy brown with excessive heatwork. GARNET RED 001322 Appears light in color saturation with thin threads of color variation. Matures to a more consistent color with deeper saturation. May contain subtle threads of darker color. May opalize heavily with excessive heatwork. FUCHSIA 001332 May become cloudy with excessive heatwork. GOLD PURPLE 001334 Appears as a dark transparent. May appear to be blue in color. Fires to a consistent, transparent, deep purple. CRYSTAL CLEAR 001401
8 of 15 05/09/2008 14:56 Brilliant colorless clear. When fired over colored glass, allows more pure, true hue of base color to show. Especially true in thicker sections. LIGHT PLUM 001405 STEEL BLUE 001406 LIGHT AQUAMARINE 001408 A copper glass. Possible dark interface reactions with sulfur (000137, 001137, 001437) glasses. LIGHT BRONZE 001409 LIGHT AVENTURINE GREEN 001412
9 of 15 05/09/2008 14:56 Opalizes slightly upon firing. LIGHT SKY BLUE 001414 LIGHT TURQUOISE BLUE 001416 EMERALD GREEN 001417 Slight variation within blue to yellow range. A copper glass. Possible dark interface reactions with sulfur (000137, 001137, 001437) glasses. TAN 001419 SPRING GREEN 001426
10 of 15 05/09/2008 14:56 Slight variation within blue to yellow range. LIGHT VIOLET 001428 LIGHT SILVER GRAY 001429 Slight variations from lighter to darker. LIGHT AMBER 001437 Varies slightly from lighter to darker shade. A sulfur glass. May have dark interface reaction with copper-bearing (001116, 001408, 001417, 000116, 000144, 000145, 000147) and lead-bearing (001311, 001411, 001301, 000305) glasses. KHAKI 001439 NEO-LAVENDER 001442
11 of 15 05/09/2008 14:56 Color variations from pink to blue depending on light in which viewed: natural, incandescent, or fluorescent. When fused over other colors, (e.g. red, orange), may tend to deepen or brighten them. SEA BLUE 001444 Stable, no color shift. OREGON GRAY 001449 TRUE BLUE 001464 Stable, no color shift. JUNIPER BLUE TINT 001806 GRASS GREEN TINT 001807
12 of 15 05/09/2008 14:56 AQUA BLUE TINT 001808 INDIGO TINT 001818 PALE YELLOW TINT 001820 ERBIUM PINK TINT 001821 BURNT SCARLET TINT, STRIKER 001823
13 of 15 05/09/2008 14:56 Appears almost clear with blue/green tints. Matures to a consistent burnt-scarlet tint. RUBY RED TINT, STRIKER 001824 Appears close to clear with blue/green tints. Matures to a consistent ruby red tint. GREEN TEA TINT 001826 LIGHT AMBER TINT 001827 GRAY TINT 001829 RUBY PINK TINT, STRIKER 001831
14 of 15 05/09/2008 14:56 Appears almost clear with blue/purple tint. Matures to a consistent ruby pink tint. Becomes more pink with excessive heatwork. CORAL ORANGE TINT 001834 MEDIUM AMBER TINT 001837 DARK AMBER TINT 001838 SPRUCE GREEN TINT 001841 LT NEO-LAVENDER SHIFT TINT 001842
15 of 15 05/09/2008 14:56 The hues of shift colors change depending on the thickness and/or lighting of the casting. RHUBARB PINK/GREEN SHIFT TINT 001859 The hues of shift colors change depending on the thickness and/or lighting of the casting. GRAY BLUE TINT 001864 OLIVE SMOKE TINT 001867 2007 Bullseye Glass Co.